CVE-2023-39343

Name: CVE-2023-39343
Creator: NVD / NIST
Published: 2023-08-04T01:15:10.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2023-39343 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Sulu is an open-source PHP content management system based on the Symfony framework. It allows over the Admin Login form to detect which user (username, email) exists and which one do not exist. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

Sulu is an open-source PHP content management system based on the Symfony framework. It allows over the Admin Login form to detect which user (username, email) exists and which one do not exist. Sulu Installation not using the old Symfony 5.4 security System and previous version are not impacted by this Security issue. The vulnerability has been patched in version 2.5.10.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.50%

38.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-204

Affected Software

Vendor	Product	Versions
Sulu	Sulu	>= 2.5.0, < 2.5.10

References

https://github.com/sulu/sulu/commit/5f6c98ba030b2005793e2dc647cc938937ea889bPatch
https://github.com/sulu/sulu/releases/tag/2.5.10Release Notes
https://github.com/sulu/sulu/security/advisories/GHSA-wmwf-49vv-p3mrMitigation, Vendor Advisory
https://github.com/sulu/sulu/commit/5f6c98ba030b2005793e2dc647cc938937ea889bPatch
https://github.com/sulu/sulu/releases/tag/2.5.10Release Notes
https://github.com/sulu/sulu/security/advisories/GHSA-wmwf-49vv-p3mrMitigation, Vendor Advisory

Timeline

Published: Aug 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39343?

How severe is CVE-2023-39343?

CVE-2023-39343 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39343?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-39343?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST